.flex{
    display: flex;
}
.column{
    flex-direction: column;
}
.row-reverse{
    flex-direction: row-reverse;
}
.j-around{
    justify-content: space-around;
}
.j-between{
    justify-content: space-between;
}
.j-center{
    justify-content: center;
}
.a-center{
    align-items: center;
}
.j-end{
    justify-content: end;
}
.a-end{
    align-items: flex-end;
}
.bred{
    border: 1px red solid;
}